On an NTFS file system, what will happen when a conflict exists between Allow and Deny permissions?

Group membership does not alter the outcome of an Allow vs. Deny conflict - a Deny permission overrides Allow regardless of which group grants the Allow.

Allow does not take precedence over Deny in NTFS; the rule is the reverse, as Deny is always the stronger permission.

NTFS enforces a strict permission precedence rule where an explicit Deny always overrides any Allow permission on the same resource. This applies whether the permissions are directly assigned or inherited through group membership. This design ensures that restricting access to a resource is always the dominant control, preventing unintended access grants.

Local machine rights do not influence NTFS permission conflict resolution - Deny overrides Allow at the file system level independent of machine-level settings.